The Hitachi ZAXIS series is the most widely deployed Hitachi excavator platform in North America, replacing the earlier EX series from the early 2000s onward. ZAXIS machines from the compact ZX85 through the ultra-class ZX850 all rely on precision-engineered engine cushion mounts to isolate their Isuzu and Hino diesel engines from the main frame structure. Correct engine cushion maintenance directly affects cab vibration levels, hydraulic system reliability, and excavator structural fatigue life.
Our replacement engine cushions for the Hitachi ZX range are manufactured to OEM dimensional and material specifications, ensuring direct fit without modification. All parts are supplied with ISO 9001:2015 manufacturing certificates and full HS code documentation for US Customs clearance.
| Part Number | ZAXIS Models | Engine | Position |
|---|---|---|---|
| 1524771 | ZX200, ZX210, ZX210LC, ZX230, ZX250, ZX270 | Isuzu AH-6BG1TRP | Front Engine Mount |
| 6129902 | ZX200, ZX210, ZX230, ZX270, ZX350 | Isuzu AH-6BG1TRP | Rear Engine Mount |
| 6180100 | ZX110, ZX130, ZX160, ZX180, ZX200 | Isuzu AH-4BG1 | Engine Support Cushion |
| 1487116 | ZX300, ZX330, ZX350, ZX360 | Isuzu AH-6WG1 | Anti-Vibration Mount |
| 450122 | ZX400, ZX450, ZX450-3, ZX470 | Isuzu AH-6WG1TQA | Anti-Vibration Mount |
| 8A31-54-1110 | ZX470, ZX500, ZX670, ZX850 | Isuzu AH-6WG1XYSA | Premium Engine Cushion |
The Hitachi ZX200 is the most common Hitachi excavator model in the US market. At typical North American construction site duty cycles (2,000–2,500 hours/year), the 1524771 front engine cushion and 6129902 rear engine cushion typically reach their replacement interval between 3,000 and 5,000 operating hours. Signs that require immediate inspection:
Always replace ZX200 engine cushions as a front/rear set. Replacing only one mount creates a stiffness asymmetry that causes the engine to rock, transmitting higher vibration to the cab and machine structure.
Large-platform Hitachi excavators in the ZX400–ZX850 range use higher-capacity engine mounts than the compact and medium series. For the ZX450-3 and ZX470, part 450122 provides the required load capacity for the 6WG1 engine series. For ZX670 and ZX850 machines operating in heavy duty mining and quarry applications in the US, part 8A31-54-1110 offers the premium-grade rubber compound with enhanced heat ageing resistance required for these high-temperature engine environments.
All Hitachi ZX large-platform engine cushions can be ordered with material test reports and certificates of conformance confirming hardness, tensile strength, and elongation at break against OEM specification limits.
We stock Hitachi ZX engine cushion parts for immediate dispatch to US and Canadian addresses. Standard lead time is 3–5 business days from order confirmation to dispatch, with express DHL/FedEx options available for urgent breakdowns. All orders ship with commercial invoice (HS code 4016.99) for smooth US Customs entry. Typical transit to US East Coast: 5–7 business days by air freight.
